So I'm looking for an Android app that can open up to a default of a Category/Tag/Whatever View where it can present the different sections to look at. I know there are tons of them out there that support tags/categories but I haven't found any where the home page can be a list of those tags. Does anyone know of anything like this?

I want this so that when my kids turn on our tablet, then can launch the app and then get into the Kid's Books area with 1 tap and not have to figure out how to navigate through menus and things like that.

Also, if the app could be set to look in a certain folder and automatically scan that folder for new books every time you open the app, that'd be awesome as well.